Home / Accessory-Muzzle Brakes / Dead Air Armament KEYMO MUZZLE BRAKE 1/2X28 Sale! Dead Air Armament KEYMO MUZZLE BRAKE 1/2X28$8900 Original price was: $8900.$8472Current price is: $8472. In stock Dead Air Armament KEYMO MUZZLE BRAKE 1/2X28 quantity Add to cart SKU: DA101 Category: Accessory-Muzzle Brakes Product ID: 49171 Description Description 5.56 Rifle Muzzle Brake Related products Gemtech TRI-LOCK 338LAP MB 3/4-24 $15000 Daniel Defense DD WAVE MUZZLE BREAK 5/8X24 $15100 Gemtech TRI-LOCK 338LAP MB 5/8-24 $15000 Sale! Q BOTTLE ROCKET MB ENHANCER $9900 Original price was: $9900.$9603Current price is: $9603.